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4
ON Semiconductor Confidential
Ezairo® 7111 V2 Pre Suite Getting Started Guide
Figure 3. Ezairo 7111 V2 Firmware Bundle Block Diagram
Full product information is provided in the
Ezairo 7111 V2 Firmware Bundle User’s Guide
, which is included with
the Sound Designer Software Windows Application.
2.3 Sound Designer Software
The Ezairo Sound Designer Software Application is an engineering tool that allows Hearing Aid manufacturers to
configure any Pre Suite Firmware bundle and derive several different Hearing Aid end products. Sound Designer
Software consists of the Sound Designer Software Windows Application and the Sound Designer Software
Development Kit (SDK).
The Sound Designer Software Application provides a complete desktop environment for hearing aid design. It
integrates a device modeler, parameter map editor, product library manager, device control panel, and a calibration and
configuration utility. This allows hearing aid manufacturers to create, configure, and test hearing aids more efficiently,
with less time spent on repetitive tasks. The application’s menu is shown in Figure 4 on page 5.
Vbat
Regulated
Microphone
Supply
Mic
Swap
Directional
Processing
Pre Biquad
Filters
Frequency
Band
Analysis
Rec
Calib.
Post Biquad
Filters
Wideband
AGCo
+
Output
Limiter
+
+
G.722
Decoder
Voice
Alerts
2 Mb EEPROM
Datalogging
Frequency
Band
Synthesis
Programming
Interface
Frequency
Band
Analysis
Profile and
Parameter
Adjustment
Tone Generator
Acoustic
Indicators
Internal
Oscillator
POR
Circuitry
Clock
Management
Power
Management
+
Input-Referred
Signal Insertion
Outut-Referred
Signal Insertion
To Input-Referred FIFO
To Output-Referred FIFO
Diagnostics
MMI
A/D
A/D
Calib.
Calib.
Environmental
Classifier
D/A
Frequency
Band
Analysis
Ezairo 7111 V2
Auxiliary Input
Automatic
Receiver
Detection
(ARD)
Feedback Path
Measurement Tool
(Chirp Generation)
Biquad
Filter
A/D
Calib.
A/D
WDRC
Noise Reduction
Equalizer
Feedback Canceller
In-Channel
AGCo
VC
Sound Generator
(Tinnitus)
+
VC
-WB Gain
High
Band
Gain
Low
Band
Gain
